Last night I looked at The Wave for the first time since I spotted the error. I decided to do it as part of the UFO Tuesday at Stitch Clubs before it truly becomes a UFO and it sits there for months doing nothing.
I did a fare bit of stitiching and still have no idea where the mistake is. I know it will become obvious at some stage. I had also run out of one of the thread colours, but having e-mailed the nice people at Dimensions they have sent me some more.
The finish is so close with this one but I really have to force myself to do it. It's mad (or I'm mad maybe!)